Tsushima

/ˈtsuːʃiːˌmɑː/

noun

1.

a group of five rocky islands between Japan and South Korea, in the Korea Strait: administratively part of Japan; scene of a naval defeat for the Russians (1905) during the Russo-Japanese war. Pop: 41 230 (2000). Area: 698 sq km (269 sq miles)

archipelago, northwestern Nagasaki ken (prefecture), off the coast of southeastern Japan. The islands lie in the Korea Strait separating Japan and Korea, and divide the strait into the Tsushima Strait (west) and the Korea Strait (east). The archipelago consists principally of two rocky islands, Kami and Shimo, which are separated at one point by a narrow channel. Kami has an area of 98 square miles (255 square km), while Shimo has an area of 174 square miles (450 square km).